PV-Cables SMK to Multi-Contact MC4 array adapters, 88.1144 Used to adapt from SMK to MC4 Male or Female? At first glance, the distinction between male and female connectors is somewhat counter-intuitive. "Male" or "female" refers to the metal pins inside rather than the actual housing of the connectors. The housing of the male connector has a large opening at the end with the actual pin inside. The connector of the female, however, has a long tip goes fits into male connector when the two are mated. If you have any questions before you make a purchase, give us a call so we can help you understand the difference between the two!